ArticleBiological psychiatry2015
In vivo ketamine-induced changes in [¹¹C]ABP688 binding to metabotropic glutamate receptor subtype 5.
Article in Biological psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.
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Who cites it
59 citing papers in PubMed.
- Dynamic alterations in the central glutamatergic status following food and glucose intake:Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021Trial
- Features of dissociation differentially predict antidepressant response to ketamine in treatment-resistant depression.Journal of affective disorders · 2018Trial
- Interactive effects of an N-methyl-d-aspartate receptor antagonist and a nicotinic acetylcholine receptor agonist on mismatch negativity: Implications for schizophrenia.Schizophrenia research · 2018Trial
- Bifunctional Modulation of NMDA and Opioid Receptors in Ketamine Reinforcement and Misuse: Implications for Substance Use Disorder Treatment.Biological psychiatry · 2026Review
- In vivo evidence for metabotropic glutamate receptor 5 dysregulation in chronic pain.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Article
- Review
- (R)-ketamine induces mGluPsychopharmacology · 2025Article
- Spontaneous glutamate release activates mGluR signaling to drive rapid antidepressant responses.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Acute Alcohol-Induced Changes Measured With Metabotropic Glutamate Receptor 5 Positron Emission Tomography.Addiction biology · 2025Article
- An In Vivo Examination of the Relationship Between Metabotropic Glutamate 5 Receptor and Suicide Attempts in People With Borderline Personality Disorder.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2025Article
- A model to simulate human cardio-respiratory responses to ketamine analgesia.Frontiers in physiology · 2025Article
- Quantification of [Current neuropharmacology · 2025Article
- Challenges and rewards of in vivo synaptic density imaging, and its application to the study of depression.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Review
- Metabotropic Glutamate Receptor 5 as a Potential Biomarker of the Intersection of Trauma and Cannabis Use.The international journal of neuropsychopharmacology · 2024Article
- The role of mGluR5 on the therapeutic effects of ketamine in Wistar rats.Psychopharmacology · 2024Article
- Testing PET-[Imaging neuroscience (Cambridge, Mass.) · 2024Article
- Ketamine and the neurobiology of depression: Toward next-generation rapid-acting antidepressant treatments.Proceedings of the National Academy of Sciences of the United States of America · 2023Review
- Metabotropic Glutamate Receptor Subtype 5 Positron-Emission-Tomography Radioligands as a Tool for Central Nervous System Drug Development: Between Progress and Setbacks.Pharmaceuticals (Basel, Switzerland) · 2023Review
- Impact of framing scheme optimization and smoking status on binding potential analysis in dynamic PET with [EJNMMI research · 2023Article
- From bench to bedside: The mGluR5 system in people with and without Autism Spectrum Disorder and animal model systems.Translational psychiatry · 2022Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
backgroundAt subanesthetic doses, ketamine, an N-methyl-D-aspartate glutamate receptor antagonist, increases glutamate release. We imaged the acute effect of ketamine on brain metabotropic glutamatergic receptor subtype 5 with a high-affinity positron emission tomography (PET) ligand [(11)C]ABP688 (E)-3-[2-(6-methyl-2-pyridinyl)ethynyl]-2-cyclohexen-1-one-O-(methyl-11C)oxime, a negative allosteric modulator of the metabotropic glutamatergic receptor subtype 5.
methodsTwo [(11)C]ABP688 PET scans were performed in 10 healthy nonsmoking human volunteers (34 ± 13 years old); the two PET scans were performed on the same day-before (scan 1) and during intravenous ketamine administration (.23 mg/kg over 1 min, then .58 mg/kg over 1 hour; scan 2). The PET data were acquired for 90 min immediately after [(11)C]ABP688 bolus injection. Input functions were obtained through arterial blood sampling with metabolite analysis.
resultsA significant reduction in [(11)C]ABP688 volume of distribution was observed in scan 2 relative to scan 1 of 21.3% ± 21.4%, on average, in the anterior cingulate, medial prefrontal cortex, orbital prefrontal cortex, ventral striatum, parietal lobe, dorsal putamen, dorsal caudate, amygdala, and hippocampus. There was a significant increase in measurements of dissociative state after ketamine initiation (p < .05), which resolved after completion of the scan.
conclusionsThis study provides first evidence that ketamine administration decreases [(11)C]ABP688 binding in vivo in human subjects. The results suggest that [(11)C]ABP688 binding is sensitive to ketamine-induced effects, although the high individual variation in ketamine response requires further examination.
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